Radix cross Linux

Index: 2023.04/Makefile
===================================================================
--- 2023.04/Makefile	(revision 173)
+++ 2023.04/Makefile	(revision 174)
@@ -154,6 +154,14 @@
 $(src_done): $(SRC_ARCHIVE) $(PATCHES_DEP) $(atf_src_done)
 	$(UNPACK_SRC_ARCHIVE)
 	$(APPLY_PATCHES)
+	@( cd $(SRC_DIR)/configs ; \
+	   echo '# Set BOOTDELAY options:'          >> $(u_boot_config) ; \
+	   echo 'CONFIG_SYS_PROMPT="$(HARDWARE)# "' >> $(u_boot_config) ; \
+	   echo 'CONFIG_BOOTDELAY=3'                >> $(u_boot_config) ; \
+	   echo 'CONFIG_AUTOBOOT_KEYED=y'           >> $(u_boot_config) ; \
+	   echo 'CONFIG_AUTOBOOT_PROMPT="Hit SPACE in %d seconds to stop autoboot.\n"' >> $(u_boot_config) ; \
+	   echo 'CONFIG_AUTOBOOT_STOP_STR=" "'      >> $(u_boot_config) ; \
+	 )
 	# ======= Suppress RK3399 'mmio_write_32' CPP Macro warnings =======
 	@( cd $(ATF_SRC_DIR) ; \
 	   sed -i 's,^\(CFLAGS[ \t]*:=.*\),\1 -Wno-array-bounds,' plat/rockchip/rk3399/drivers/m0/Makefile ; \